Photochromic composition with polyol and poly(anhydride) | Patent Number 12163045

US 12163045 B2
Application Number17638349
Publication NumberUS 20220325133 A1
Pendency5 years, 3 months, 14 days
Filled DateAug 30, 2019
Priority DateAug 30, 2019
Publication DateOct 13, 2022
Expiration DateAug 29, 2039
Inventor/ApplicantsBrad S. Veldkamp
Ramaiahgari Reddy
Anil Kumar
Examines-
Art Unit0
Technology Center0
Assignments
Transitions Optical Inc.
Current
Transitions Optical Inc.
Original
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